Sportsmen, singers, actors and actresses, TV host, and all other famous personalities have lives that seem out of this world—you know, because of the money and the fame. But despite their astronomical success, they all started just like the rest of us: in diapers.

Once upon a time, Hollywood stars were babies too. Some of them haven’t changed a bit, while some others are simply unrecognizable.

Can you imagine a cute mini version of super-hot Brad Pitt? Or a chubby cheeky little Kim Kardashian? Click through our photo gallery above to see how much celebrities have changed since their diaper days!